Improvement in indicators toe the springing or bending of railway-axles



L. E. OSBORN.

' Dynamometer.

No. 76,803. Patented April 14, 1868.

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LEWIS E. o-sBoEN, CE NEW HAVEN, CONNECTICUT.l

Letters Patent No. 76,803, dated April 14, 1868.

IMPROVEMENT IN INDIGATRS I'OR THE SPRINGING ORB-ENDING 'OF RAILWAY-AXLES. 1

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TO ALL WHOM I'l MAY CON CERN y Be it known that I, LEWIS E. OsBonN, of New Haven, and Stato of'Gonnecticnt, county of New Haven, have invented a new and useful Improved Spring-Axle Indicator; and 1' do hereby declare the followingto be n full, clear, and exact description of the same, reference heiligheid tothe accompanvig'-drawings, and to the' letters of reference marked thereon. Said drawings constitute part of this'specilication, and represent, in-

Figure 1, a side elevation of a car-truck with my improved indicator attached,

Figure 2, a plan view ofthe same, and in Figures 3 and 4 the dial enlarged.

Similar letters of reference, when they occur in the separate views, "indicatevlilie parts.

My invention consists of an arrangement fixed to the truck of`a railway-carriage, and connected with the wheelto indicate any deviation of the axle from a horizontal line.

To enable others skilled in the art to make'and use my improved'indicatorfIwiH proceed to describe the` construction and operation of the same. y Y l A is a dial provided with' apointer, d, and fixed upon a truck, B, of any common construction. C C are levers also fixed upon the truck B by means of standards a a. Said level-sare constructed with a fork at the lowerend to correspond with the flange b on the wheel of the truck, and connected at the upper end, by means V of a wire or its equivalent, with the pointer d upon the dial A. D D are. bands or rings placed upon the axles of the truck, about midway between the wheels, und also connected,`by means of a. wire or`its equivalent, with thesaid pointer d.

This completes the construction of my improvement. The operationis as follows: Whenever the axle becomes in the least sprung, the wheels mnst-necessarily be thrown out of their true line of motion. When the wheel is thus thrown out of line, the ange b. acts as a cam upon the lever C, and throws it back, as shown in'red, tig. 2. The said lever being connected with the pointer d on the` dial A, the

said .pointer is thereby carried forward, as shown in red, iig. 1, and is held in this position by means'of the ratchet and pawl c, (seefigs. 3 and 4,) and thus indicating the slightest variation in the axle. In case, however, these levers should fail to perform their duty, I provide each axle witha bandl or ring, D, whichis acted on by the axle (it being out of true) as an eccentric or cam, thus drawing the wire which attaches it to' the pointer d, throwing the said pointer forward in the same manner as above stated.

I am aware that this result may be obtained by moans oflevers acted onl by the axlein 'a similar way, but I 'prefer a band or ring, on account of its being less expensive, and more easily adjusted.4

Having thus fully described my invention, what'I claim as new and useful, and desire' to secure' by Letters Patent, is.- z V 4 p 1. The lever C placed upon the truck acted on by the flange b, and cornnected'with the pointer'd, to indicate in the manner and for the purpose specied. l f

2. The band or ring D placed upon the axle, upon which the said axle acts asy an eccentric or cam, and connected with the pointer d, to indicate in the manner and for the purpose herein specified. l

3. The combination of the dial A, levers C C, and rings D D, as a double-acting indicator, in the manner and for the purpose specied.

' LEWIS E. OSBORN.

` Witnesses:

H. J. GAYLCRD, Rufus H. SANFORD. 

